baber/WOPTO huggingface dataset:
Patent GB-586253-A (GB)
Title: Improvements in polyphase metalclad electrical switchgear
IPC: H02B1/00
Filed: 1944-12-15
Abstract: 586,253. Switchgear structures; gas - blast switches. DAVIES, D. R., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Dec. 15, 1944, No. 25233. Addition to 492,395. [Class 38 (v)] Polyphase switchgear as claimed in the parent Specification is modified in that the circuitbreakers, of which there is one for each phase, are each of the air or gas-blast type and are enclosed in a preferably earthed metal casing in turn separate from the enclosures for the ancillary gear. The circuit breakers for each phase may be enclosed in separate casings. In addition the several poles of each circuitbreaker may be separated by earthed metal barriers. In a typical three-phase layout (Fig. 2) the air blast circuit breakers are arranged side by side in tubular metal casings 10 each circuit breaker comprising nozzle arcing contacts 11, 12 in an arcing chamber 13, the nozzles extending via metal pipes 17, 19 respectively into vent pipes 18, 20 in turn extending through a vertical fireproof wall 47 into a ventilation tunnel 48. Pipe 19 supports a stationary socket contact 15 of an isolating switch in a cross-blast explosion pot 22, the moving contact 16 of said switch being operated by a rod 25 from mechanism 34 housed in an end closure 27 on casing 10. Rod 25 slides through a metal contact sleeve 28 attached to a conductor 29 extending through the rear wall of casing 10 and wall 47 to one contact of a circuit isolating switch 51 enclosed in an oil-filled tank 52 to the other contact being connected to the cable to be connected to the circuit breaker in a cable passage 53. Pipe 17 connects the stationary contact 11 of the circuit breaker to a conductor 35 extending into an oil filled tank 37 upon which the casing 10 rests. Within the tank 37 conductor 35 is connected to aT-connector 60, the ends of which are carried by bushings 61, 62 through the fireproof flooring 38 to the moving contacts 64 of selector switches 65 mounted on opposite sides of a fireproof wall 71 above main and auxiliary bus-bars 69, 70 to which the fixed contacts 66 of the selector switches 65 are connected. A voltage transformer may be arranged and interconnected with the circuit breaker through the isolating switch 51 as in Specification 584,818.
Patent GB-1165765-A (GB)
Title: Method and apparatus for Forming Tear Strips on Webs of Thin Wrapper Material
IPC: B31B1/90
Filed: 1967-06-01
Abstract: 1,165,765. Coated packaging materials. AMERICAN MACHINE & FOUNDRY CO. 1 June, 1967, No. 25252/67. Heading B2E. [Also in Division B8] A method of making wrapper blanks comprises providing a web thin wrapping material with a tear strip by applying at or near one edge of the web a narrow line or strip of the film-forming material and subsequently drying the material upon the web so as to form an integral film which reinforces the underlying web material and cutting the web material into rubber blanks. The film forming material may be coloured at intervals and it may also have a colour which is different from that of the web. A machine for producing the wrapper blank comprises an apparatus for forming upon a continuous web of thin wrapping material a tear strip running parallel to one of the web edges, the apparatus comprising means for continuously, drawing said web from a real and causing it to pass along a predetermined path, means on the path for applying upon the web a line of liquid film of the film-forming material and drying means on the path of the web past the applying position of the film-forming material, and further comprising a cutter past the drying means on the path of the web for cutting the web transversely into rubber blanks. The means for applying a line of film forming material may comprise a closed tank for the liquid, means for exerting a pressure on the liquid and a duct for feeding the liquid applying nozzle. The machine may further comprise a liquiddistributing roller revolving close to the outlet of the nozzle and a smearing disc revolving between the distributing roller and moving wrap-over. The wrapping material may be cut into blanks wherein one of the ends of each blank is provided with a projecting grasping flap in alignment with the tear strip. The wrapper material may be of regenerated cellulose and the film-forming material may be of cellulose esters, plasticised vinyl resins and solutions of polypropylene resins.
Patent GB-169460-A (GB)
Title: Manufacture of dyestuffs of the acridine series
Filed: 1920-07-02
Abstract: Acridine dyes are obtained by heating a formyl derivative of a m-diamine of the benzene series with b -naphthylamine or by heating formyl-b -naphthylamine with a m-diamine of the benzene series or a monoalkylated or unsymmetrically dialkylated m-diamine of the benzene series, the reaction being conducted with salts of the bases in question such that there is present at least one molecular proportion of acid for each molecular proportion of dyestuff produced. According to examples, dyestuffs are prepared from the following:-4-formylamino-2-aminotoluene and b -naphthylamine hydrochloride; monoformyl-m-phenylenediamine and b -naphthylamine hydrochloride; formyl-b -naphthylamine and m-toluylenediamine hydrochloride; formyl-b -naphthylamine and 3-aminodimethylaniline hydrochloride.  The products dye leather yellow to orange-red shades. Specification 145,802 is referred to.
Patent GB-691542-A (GB)
Title: An improved calculating appliance for evaluating electrical quantities
IPC: G06G1/00
Filed: 1950-10-18
Abstract: 691,542. Calculating-apparatus. BOND, R. Oct. 18, 1951 (Oct. 18, 1950; Oct. 18, 1950], Nos. 25349/50 and 25350/50. Class 106 (i). An appliance for ascertaining gauge of fusewire according to loading of an electrical power circuit comprises a pair of relatively rotatable concentric discs (Fig. 1), the larger disc A bearing uniform scales C and D for load current and horse-power. The smaller disc B has index pointers G and H co-operating with these scales, and an arcuate window E for reading a third scale F on the disc A of fuse-wire gauges. The appliance can be used for finding current corresponding to a given horse-power, and vice versa, as well as the correct fuse-wire gauge for a given current or horse-power. Wire gauging holes L may be drilled in the rim of the disc A. Logarithmic apparatus. The rear (Fig. 2) of the larger disc A may be marked with a logarithmic K.V.A. scale co-operating with a logarithmic K.W. scale marked on the periphery of a further small disc M. A power factor scale S is-also marked on the larger disc, and is read through a window N of the disc M to show power factors corresponding to relative adjustments of the K.W. and K.V.A. scales.
Patent GB-1550919-A (GB)
Title: Shaft seals
IPC: F16J15/34
Filed: 1976-06-18
Abstract: The mechanical seal, which is suitable, in particular, for oil-burner pumps, has a metal mating ring (5) with ground score marks (20) which have a unidirectional inclination relative to the radial direction and, in operation, pump back leakage oil. The sealing surface (19) of the mating ring (5) is provided with a thin phosphate layer. During interaction with a rotating slip ring made of carbon, any unevenness is eliminated in operation by the continuous abrasion of the parts resting against one another while the pumping action of the ground score marks is retained. The seal is effective even when the pump is stationary. The design of the score marks as ground score marks on one face of the mating ring (5) results in a simple and inexpensive manufacturing process. <IMAGE>
Patent GB-263250-A (GB)
Title: Improvements in internal combustion engine ignition
IPC: F23Q7/00
Filed: 1925-10-13
Abstract: 263,250. Widdop & Co., Ltd., H., and Widdop, H. Oct. 13, 1925. Incandescent igniters for cylinders using liquid fuel consist of an electrically-heated coil or its equivalent f supported between a block d and the end of a rod c. Slots a<2>, b<2> are proprovided in the tube a and an outer tube b, and, after starting, when ignition is effected by the heat of compression, these slots. are moved out of alignment in order to protect the coil f.
Patent GB-1145336-A (GB)
Title: 17--[3' furyl]-estrogens and process for the preparation thereof
IPC: C07J17/00
Filed: 1966-06-08
Abstract: 1,145,336. 17α - Furyl - strogens. AYERST, McKENNA & HARRISON Ltd. 8 June, 1966 [14 Sept., 1965], No. 25574/66. Heading C2U. The invention comprises compounds of formula wherein R is a hydrogen atom or a C 2-4 -aliphatic acyl group and R<SP>1</SP> is a hydrogen atom or a C 1-4  alkyl, C 5-6  cycloalkyl, 2-tetrahydropyranyl or acyl group or a group -SO 3 <SP>-</SP>X<SP>+</SP>, wherein X is a sodium, potassium, calcium, magnesium, barium, ammonium or organic base cation, the dotted lines indicating one optional 7(8) double bond or two optional 6(7) and 8(9) double bonds, and their preparation by reaction of 3-furyllithium with a compound of formula wherein R<SP>1</SP> is a hydrogen atom or a C 1-4  alkyl, C 5-6  cycloalkyl or 2-tetrahydropyranyl group, followed, if desired, by (a) 3 and/or 17-etherification or esterification or (b) reaction of a 3-ol with chlorosulphonic acid in the presence of an organic base, with optional conversion to an ammonium or inorganic salt. 3-(C 2-4  alkyl and C 5-6  cycloalkyl) ethers of equilin and equilenin are prepared by reaction of a sodium or potassium salt of the steroid with an alkyl or cycloalkyl halide. The compounds of the invention have estrogenic activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral or parenteral administration.
Patent GB-1039508-A (GB)
Title: Liquid-cooled semiconductor assembly
IPC: H01L23/473
Filed: 1965-06-17
Abstract: 1,039,508. Cooling systems for semi-conductor devices. BROWN, BOVERI & CO. Ltd. June 17, 1965 [June 19, 1964], No. 25626/65. Heading H1K. A plurality of semi-conductor elements having cooling means are mounted in an electrically insulating plate which forms at least one side of a conductive container in which container a cooling liquid flows around the cooling means. In Fig. 2, a conductive container 1 has a face-plate 2 of non-conductive material which has set therein semi-conductor devices 4 each of which has a series of fins projecting into the container 1, the fins being covered with an insulating coating. The container is filled with a cooling fluid which can flow into radiators 5 and be air-cooled therein. The radiators may be replaced by a forced circulation cooling system.
Patent GB-1198609-A (GB)
Title: A Method of Producing Gravure Formes.
Inventor: VOS FERDINAND ALLARD DE
IPC: B41C1/04
Filed: 1969-05-20
Abstract: 1,198,609. Production of gravure printing formes. WERKSPOOR-AMSTERDAM N.V. 20 May, 1969 [24 May, 1968], No. 25648/69. Heading H4F. In a method of electromechanically producing gravure formes line-by-line by means of an engraving element which is controlled by pulses at a given screen frequency in dependence upon information obtained by photo-electric scanning of a master, to produce a line screen instead of a dot screen the pulses delivered in each line have a phase difference other than 180 degrees with respect to the pulses delivered in the immediately preceding line. The remaining ridges 2, Fig. 2, are of a sawtooth shape, their form being determined as required by making the distance between consecutive lines less than half the maximum dimension-extending transversely with respect to the lines-of the cell cut at the maximum depth of penetration of the engraving element, this distance being so selected that an approximately straight line is obtained.
Patent GB-648248-A (GB)
Title: Method for making a water solution of raw aluminates of lime and its application to the manufacture of alumina
IPC: C01F7/12
Filed: 1946-08-27
Abstract: <PICT:0648248/III/1> In making solutions high in alkali aluminate and low in calcium aluminate contents by dissolving water - soluble raw calcium aluminates in dilute alkali lyes, containing, e.g. less than 30 gms. of Na2CO3 per litre, and recovering pure alumina therefrom without recourse to the usual purifying salts, the quantity of lye used is reduced below that at which the calcium aluminate is completely decomposed under the reaction conditions obtaining. Alumina may be obtained from the filtered solutions by carbonation at 30 DEG  C. to give an amorphous form, or by carbonation at 50 DEG  C. to give a crystalline form, Al2O3.2H2O, a granular product being obtained in both cases by effecting precipitation in the presence of suitable seed.  In continuous operation, crude aluminate is dissolved at a in return solution from filters and wash waters, drained sludge from a being further drained and washed at F1, from which recovered water is returned to a via tank e.  Saturated solution from a is filtered at F2 and make-up Na2CO3 is added thereto in tank b, after which precipitated CaCO3 is filtered and washed at F3, the precipitate being discharged at 6 while draining and wash water are returned to tank e from which a byepass 8 allows requisite amounts of regenerated Na2CO3 solution into the make-up tank b.  Lime-free sodium aluminate solution from b is then filtered at F4, carbonated at c and passed into a settling tank d from which it is continually returned to c as build-up seed until the alumina is sufficiently granular, when a portion is withdrawn through 14 and filtered at 15, while the remainder is recirculated at c, residual liquid from d and water from F5 being returned to tank e, where it may be necessary to add lime to decompose bicarbonates formed through over-carbonation.
Patent GB-190797-A (GB)
Title: Improvements in thread spooling machines
IPC: B65H54/54
Filed: 1921-09-28
Abstract: 190,797. Walls, A. G., and Walls, R. N. Sept. 28, 1921. Thread-spooling machines.-In a semi - automatic spooling- machine, a number of spools a, Fig. 1, are mounted on a work arbor b which rotates the sleeve c of its end-supporting bearing, Fig. 2, by means of a clutch formed by the toothed end of the arbor b, Fig. 4, and the recessed end of a spring - pressed element d. The bearing is carried in a support e secured to a bracket 3, which, together with brackets 1, 2, is fixed to a doffing slide f, Fig. 5. The doffing slide f is operated by a handle g, which by means of a slot i engages a pin h in the slide. The handle g is pivoted to a link j which latter is pivoted to the machine at k, and thus the handle g can operate the slide f when it is in either of the two positions shown in Fig. 5, thus serving to force upon the arbor b and to doff several spools in succession. In a modification, the work arbor may be short and feathered as shown in Fig. 6, and in this arrangement the bracket 3 is fixed to the slide f while further brackets, such as 2, are slidably mounted thereon. The spools are mounted in position by moving the slidable brackets 2 by hand; the handle g is then operated to traverse the slide f, and the fixed bracket 3 forces all the spools home against the shoulders of their arbors and the end spool a on to the driving-arbor b. The whole arrangement is such that the lubricated bearing-surfaces are clear of the spools and soiling of the latter by lubricant is prevented. A known form of thread-guide is used in combination with the parts above described.
Patent GB-843205-A (GB)
Title: Improvements in or relating to lighting fittings
IPC: F21V7/08
Filed: 1957-08-14
Abstract: 843,205. Street lighting fittings. MOOS, K. Aug. 14, 1957 [Aug. 14, 1956], No. 25717/57. Classes 75(2) and 75(4). A fitment for street lighting comprises at least two point or linear light sources each arranged within a hollow reflector in the form of a three-axis ellipsoid, the curved portions of which remote from the light exit aperture may however be replaced by flat surfaces, the reflectors being assembled on cut off vertex calottes with the longest and shortest axes in the plane of the light exit and the light sources being arranged with their centres on the parallel half axes of the ellipsoids extending at right angles to the plane of the light exit, the linear light sources when used being parallel to the longest axes. Fig. 2 shows two such reflectors 11, 12 in plan view. A third ellipsoidal reflector may be arranged between reflectors 11, 12 and may house a linear light source. The arrangements may be such that a light ray from one source impinging on the surface of the reflector at the line of join is reflected towards a point on the equator of the second reflector.
Patent GB-1217989-A (GB)
Title: Sterilizing apparatus using gas sterilants
IPC: A61L2/20
Filed: 1969-05-20
Abstract: 1,217,989. Sterilizing apparatus. MMM MUNCHENER MEDIZIN MECHANIK G.m.b.H. 20 May, 1969 [24 May, 1968], No. 25726/69. Heading A5G. Sterilizing apparatus comprises an evacuable chamber 1 closed by a door 4 and communicating via a passage 6 with an enclosure 7 having a lid 9 and containing a cartridge of sterilizing gas 8 which may be opened by screwing down the enclosure lid 9 so that the end of the cartridge is pierced by the spike 19. The apparatus is characterized by a safety arrangement whereby, after the door has been closed and secured by the threaded shaft 22, an actuating device in the form of an eccentric member 12 rotatably mounted on a shaft 13 is withdrawn from its housing to a position (shown by broken lines in Fig. 3) in which rotation of the eccentric member operates the gas release mechanism and also secures the door fastening mechanism (see Figs. 2 and 5, not shown). Rotation of shaft 13 is effected by a drive shaft 25 (operating in a key way therein) which is operated by a drive 23 actuated by a control device 24 which can only operate when both of switches 27 and 28 have been closed. Of these, switch 27 is closed only when the door fastening mechanism 22 has been closed (see Fig. 5 not shown) and switch 28 is closed only when the eccentric 12 has reached its operating position. As shown, the automatic control device extends to operating the remainder of the process in accordance with a predetermined programme there being an over-riding manual control system with an emergency disconnecting device which enables any part of the programme to be selected or discontinued.
Patent GB-866512-A (GB)
Title: Improvements in or relating to signal recording apparatus
Inventor: BURROWS DEREK RAYMOND
IPC: H03M1/00
Filed: 1957-08-15
Abstract: 866,512. Electric selective signalling systems. BUSH & RANK CINTEL Ltd. Aug. 14, 1958 [Aug. 15, 1957], No. 25756/57. Class 40 (1). In a device for producing a graphical record of data represented by the number of electrical pulses occurring in a predetermined time period, the data is converted, by means of a chain of resistances 28, Fig. 2, having a tapping-point selected by a multi-cathode counting-tube, into an amplitude significant potential which is passed via a buffer circuit 29 to a graphical recorder 30, no details of these last two units being given. In a modification (Fig. 1, not shown) a counter using four triggers for each decimal denomination, for example as described in Specification 735,942, which is referred to, is employed.
Patent GB-909730-A (GB)
Title: Relays employing transistors
Inventor: LOBELLE MARCEL JULES ODILON
IPC: H03K17/64
Filed: 1960-07-25
Abstract: 909,730. Circuit assemblies. M.L. AVIATION CO. Ltd. July 24, 1961 [July 25, 1960], No. 25818/60. Drawings to Specification. Class 37. [Also in Group XL (c)] In a relay comprising a plurality of switching transistors which are controlled in parallel by respective secondary windings of a transformer fed from a common transistor oscillator, whereby the conductive states of the transistors are switched when the oscillator is energized, the switching transistors and the oscillator are each embedded in an electrically insulating medium. In one arrangement the secondary windings are all embedded in the same block as the oscillator which is provided with sockets into which the respective transistor switching units are plugged. In a second arrangement each secondary winding is embedded in the same block as its associated switching transistor, the switching units being so mounted that the secondary windings embedded therein are brought sufficiently close to the primary winding in the oscillator block to effect electromagnetic coupling between them. The oscillator block is provided with a base fitted with pins for plugging into a source of power to energize the oscillator.
Patent GB-394302-A (GB)
Title: Improvements in shaping machines and other machine-tools
IPC: B23D1/08
Filed: 1931-09-15
Abstract: 394,302. Shaping-machines. ATELIERS G. S. P., Albert, Somme, France. Sept. 15, 1931, No. 25858. Convention date, Aug. 4. Void [Published under Sect. 91 of the Acts]. [Class 83 (iii).] In a shaping-machine or similar machine tool the crank-plate 1 which oscillates the link 2 connected to the ram 3 is driven by worm gearing 6 operated through a change-speed gearbox 9 from an electric motor 10. The crankplate has a hollow hub 5 mounted in ball bearings 11 within an oil-containing casing 12. The adjustable crank pin 14 is carried on a dovetail guide member 15 carrying a rack 16 engaged by a pinion 18 on a sleeve 19 mounted within the hollow hub. The outer end of the sleeve carries an adjusting hand-wheel 22. A rod 23 flanged at 25 to bear against the sleeve and hand-wheel is screwed at its forward end in a nut 24 fitting in a slide groove 28 in the dovetail guide so that by turning the squared end 29 of the rod, the guide 15 may be securely locked in position. When the nut is unlocked the crank radius is adjusted from the handwheel 22. In order to indicate this adjustment, the hand-wheel is recessed to receive a graduated toothed rim 30 which is retained bv a plate 31, and a long pinion 33 mounted in a bore of the hand-wheel engages both the rim 30 and also fixed teeth 34 so that as the hand-wheel is rotated the rim 30 rotates relatively to its retaining-plate 31 to indicate the setting of the crank-pin. The periphery 35 of the crank-plate lies in a surface of revolution having an inclined axis and is engaged by a roller 38, Fig. 3, on an arm which actuates a spindle 36 geared to the table feed screw 42. The roller 38 may be moved axially along the surface 35 to vary the feed which is zero when the roller is in the plane P and a maximum when it is in plane P<1>. The feed may also be actuated from a hand-wheel 40. The table 41 rests at 46 on its slideway and has an inclined lower guide portion with a gib adjustment at 47. A coverplate 48 of inverted U -form protects the upper sliding joint between the table and the frame and assists in guiding the table.
Patent GB-1018211-A (GB)
Title: Improvements in or relating to tensioners for chains,belts and the like
IPC: F16H7/08
Filed: 1963-06-28
Abstract: 1,018,211. Stud and socket fastenings. RENOLD CHAINS Ltd. and J. E. HOPKINS. June 19, 1964 [June 28, 1963], No. 25888/63. Heading E2B. [Also in Division F2] In a chain or belt tensioner comprising a rubberised head 12 mounted on a cylindrical plunger 17 slidably mounted in a bore 18 in a supporting block 19, a cylinder 14 received in a bore 16 of the plunger 17 and having a helical slot 22 into which projects a pin 23 secured to the plunger 17, and a spring 13 acting between the ends of the cylinder 14 and plunger 17, a step 28 is provided in a wall 26 of the slot 22 in which the pin 23 may be engaged to lock the cylinder 14 and plunger 17 together. To unlock the members 14 and 17, they are pressed together axially so that the pin 23 engages an inclined surface 24a, causing relative rotation between the members 14, 17. To prevent accidental unlocking, a cardboard strip 31 may be inserted between the head 12 and block 19. During normal operation, the pin 28 rides along the wall 26 causing relative rotation between the members 14 and 17. Recesses 27 are provided in the opposed wall of the slot 22 into which the pin 23 moves to limit relative axial movement of the members 14, 17 in the return direction, as described in Specification 724,522. A lubricating oil inlet 32 and oil bore 33 are provided.